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Finding the Fourth Proportional to 624.07, 862.09 and 450.33

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Solution

The fourth proportional to 624.07, 862.09 and 450.33 is: 622.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.07 : 862.09 = 450.33 : x
  2. Step 2: Convert to fraction form
    624.07/862.09 = 450.33/x
  3. Step 3: Cross multiply
    624.07x = 862.09 × 450.33
  4. Step 4: Simplify right side
    624.07x = 388,223.16
  5. Step 5: Solve for x
    x = 388,223.16/624.07
  6. Step 6: Final answer
    x = 622.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.